Littlehampton Rainfall ForecastUnited KingdomSEWest SussexLittlehamptonToday 15 Sep20%Wed 16 Sep35%Thu 17 Sep65%Fri 18 Sep20%Sat 19 Sep15%Sun 20 Sep5%Mon 21 Sep5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Littlehampton rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads